If you have an online account, such as an e?mail account, you can link that account with your Windows user account. Linking these accounts provides the following benefits:
People can share files with you on a homegroup using your online ID instead of having to create a Windows user account for you on their computer.
You can use your online ID to access your information on other computers on a network, such as accessing files on a home computer from your work computer.
Follow the Procedure to link Online IDs
Open User accounts from Control panel.
Click Link online IDs from Left Menu.
Next to the online ID provider that you want to link your user account with, click Link Online ID.
Type your user name and password for the online ID, click Sign in, and then click OK.